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From: Apache Wiki
To: commons-dev@jakarta.apache.org
Date: Thu, 16 Nov 2006 01:11:59 -0000
Message-ID: <20061116011159.10590.74903@ajax.apache.org>
Subject: [Jakarta-commons Wiki] Update of "Digester/FAQ" by SimonKitching
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Dear Wiki user,
You have subscribed to a wiki page or wiki category on "Jakarta-commons Wiki" for change notification.
The following page has been changed by SimonKitching:
http://wiki.apache.org/jakarta-commons/Digester/FAQ
The comment on the change is:
Add info about extracting nested XML as a string
------------------------------------------------------------------------------
It might be possible to create a custom "filtering" rule that has a child rule,
and fires that child rule only when the appropriate conditions are set. There
- are no examples of such a solution, however.
+ are no examples of such a solution, however.
A possible solution is to perform an XSLT transform to filter out or rename elements that
match certain conditions before using Digester to process the document.
@@ -422, +422 @@
If you are aware of other solutions to this issue, please add that information here.
+ == How do I get some xml nested within a tag as a literal string? ==
+
+ It is frequently asked how some XML (esp. XHTML) nested within a document can be extracted
+ as a string, eg to extract the contents of the "body" tag below as a string:
+
+ {{{
+
+ An article about something
+
+ Some xhtml data
+ Some more xhtml data
+
+
+ }}}
+
+ If you can modify the above to wrap the desired text as a CDATA section then things are easy; Digester will simply treat that CDATA block
+ as a single string:
+
+ {{{
+
+ An article about something
+
+ Some xhtml data
+ Some more xhtml data
+ ]]>
+
+
+ }}}
+
+ If this can't be done then you need to use a !NodeCreateRule to create a DOM node representing the body tag and its children, then
+ serialise that DOM node back to text.
+
+ Remember that Digester is just a layer on top of a standard XML parser, and standard XML parsers have no option to just stop parsing
+ input at a specific element - unless it knows that the contents of that element is a block of characters (CDATA).
+
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